function [AM_Proportion_PlaceCell, AM_Proportion_PlaceCell_Mean] = AM_Proportion_PlaceCell_One_Animal_One_Dose(Placeness_MetaData, AnimalID, drug, session)

for n=1:size(Placeness_MetaData,2)
    if strcmp(Placeness_MetaData(n).animalName, AnimalID) && strcmp(Placeness_MetaData(n).drug, drug) && strcmp(Placeness_MetaData(n).session, session)
        AM_Proportion_PlaceCell(n,1)=Placeness_MetaData(n).PlaceCell_Proportion;
    end
end
AM_Proportion_PlaceCell(AM_Proportion_PlaceCell==0)=[];
AM_Proportion_PlaceCell_Mean = mean(AM_Proportion_PlaceCell);

end